A cannon fires two shells from same point with velocity 250m/s. Ist at 60° and 2nd at 45° to the horizontal, the azimuth being same.. Neglect air drag. The approximate time interval between firings leading to the collision of the shell. Please tell me the meaning os azimuth in this question.

Three identical balls are placed on a frictionless horizontal surface touching each other. They stick to each other because of adhesive. Another ball of same radius and mass m is placed over the void created by the three balls. Find the forces applied by the balls kept on the floor to each other if the system remains in equilibrium.

A car loaded with water having total mass 1000 kg moves on a straight horizontal Road starting from rest under the action of a force of 100 Newton. The water spills throw a small hole in the bottom at a rate of 0.1 KG per second the velocity of cart after 300 seconds is nearly.

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